CN201220547Y - Compass - Google Patents
Compass Download PDFInfo
- Publication number
- CN201220547Y CN201220547Y CNU200820023223XU CN200820023223U CN201220547Y CN 201220547 Y CN201220547 Y CN 201220547Y CN U200820023223X U CNU200820023223X U CN U200820023223XU CN 200820023223 U CN200820023223 U CN 200820023223U CN 201220547 Y CN201220547 Y CN 201220547Y
- Authority
- CN
- China
- Prior art keywords
- compass
- utility
- model
- fixing feet
- compasses
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 241000252254 Catostomidae Species 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model discloses a teaching aid, particularly a compass. The compass comprises a fixing leg and a rotating leg, and is characterized in that a sucker is arranged at the end of the fixing leg. The utility model has the beneficial effect that the compass has a simple structure, is used conveniently and solves the problem that the fixing leg is easy to slide when the compass is used for drawing a circle.
Description
(1) technical field
The utility model relates to a kind of teaching aid, particularly a kind of compasses.
(2) background technology
The demonstration compasses that teaching is at present used, aciculiform structure that compass foot is an iron normally, another pin is the fixing feet that is used for fixing chalk, usually because blackboard is more smooth than handing over, the aciculiform pin of compasses is not easy to fix, in drawing the circle process, also skid easily, cause drawn figure to lose shape or be out of shape.
(3) summary of the invention
The utility model provides a kind of compasses easy to use in order to remedy the deficiencies in the prior art.
The utility model is achieved by the following technical solution:
A kind of compasses comprise fixing feet, rotate pin, and it is characterized in that: the end of described fixing feet has sucker.
The more excellent technical scheme of the utility model is: described fixing feet is telescopic, and described rotation pin is telescopic.
The beneficial effects of the utility model: effectively solved compasses drawing bowlder fixing feet problem of slip, simple in structure, easy to use.
(4) description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Accompanying drawing is a structural representation of the present utility model.
Among the figure, 1 fixing feet, 2 suckers, 3 rotate pin.
(5) specific embodiment
Accompanying drawing is a kind of specific embodiment of the present utility model.This embodiment comprises fixing feet 1, rotates pin 3, and the end of fixing feet 1 has sucker 2.Fixing feet 1 is telescopic, and it is telescopic rotating pin 3.The existence of sucker 2 has effectively solved compasses problem of slip when the blackboard upper drawing circle, sucker 2 can be fixed on the blackboard firmly, guaranteed fixing feet 1 inertia, the figure that draws so just can guarantee it is just round, two pin of compasses are telescopic, can adjust the length of two pin as required, the circle diagram case of draw different sizes and shape.
Claims (2)
1. compasses comprise fixing feet (1), rotate pin (3), and it is characterized in that: the end of described fixing feet (1) has sucker (2).
2. compasses according to claim 1 is characterized in that: described fixing feet (1) is for telescopic, and described rotation pin (3) is telescopic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820023223XU CN201220547Y (en) | 2008-05-27 | 2008-05-27 | Compass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820023223XU CN201220547Y (en) | 2008-05-27 | 2008-05-27 | Compass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201220547Y true CN201220547Y (en) | 2009-04-15 |
Family
ID=40574065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820023223XU Expired - Fee Related CN201220547Y (en) | 2008-05-27 | 2008-05-27 | Compass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201220547Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950941A (en) * | 2012-11-20 | 2013-03-06 | 无锡商业职业技术学院 | Compasses for whiteboard teaching |
-
2008
- 2008-05-27 CN CNU200820023223XU patent/CN201220547Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950941A (en) * | 2012-11-20 | 2013-03-06 | 无锡商业职业技术学院 | Compasses for whiteboard teaching |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201220547Y (en) | Compass | |
| CN202319550U (en) | Compass for math teaching | |
| CN201941426U (en) | Compasses for teaching | |
| CN202345177U (en) | Adjustable compass for mathematical teaching | |
| CN202293903U (en) | Novel multi-functional ruler | |
| CN201619351U (en) | Novel cyclograph | |
| CN203078071U (en) | Chalk compasses | |
| CN204296301U (en) | Circular mapping teaching aid | |
| CN201816353U (en) | Compasses used on blackboard | |
| CN205038820U (en) | Multi -functional english teaching display device | |
| CN201287554Y (en) | Suction disc type circular curve-drawing instrument for teaching | |
| CN202080008U (en) | Compasses | |
| CN203118387U (en) | Movable type propaganda column | |
| CN202573534U (en) | Blackboard eraser | |
| CN204160961U (en) | A two-point fixed blackboard compasses | |
| CN202319542U (en) | Triangular compasses | |
| CN201619354U (en) | Attracted-disc cyclograph | |
| CN201755986U (en) | Pen with correction fluid | |
| CN202541109U (en) | Ruler | |
| CN202720795U (en) | Novel practicing calligraphy felt | |
| CN202439432U (en) | Suction disc type teaching compasses | |
| CN202345175U (en) | Suction cup type compass | |
| CN2880527Y (en) | Compasses with support having plate | |
| CN204117583U (en) | A kind of simple and easy support for Zheng-a 21-or 25-stringed plucked instrument | |
| CN205220164U (en) | Teaching compasses |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090415 Termination date: 20100527 |